Why can't the DC ammeter measure an alternating current? - Alternating Current and Voltage

Electrical and Electronic Engineering (EEE) : Alternating Current and Voltage - Quiz(MCQ)

Why can't the DC ammeter measure an alternating current?

A)

AC is virtual

B)

AC changes its direction

C)

AC cannot pass through a DC ammeter

D)

The average value of a complete cycle is zero

Correct Answer : Option (D) : The average value of a complete cycle is zero

Recently Updated in Alternating Current and Voltage Questions

The peak to average power ratio of sine wave is ________

A)

3.01 dB

B)

4.77 dB

C)

6.02 dB

D)

None of the above

Correct Answer : 3.01 dB

The form factor value of the triangular waveform is _______

A)

1.154

B)

1.414

C)

0.7071

D)

None of the above

Correct Answer : 1.154

The ripple factor is defined as a ratio of _________

A)

Peak voltage/DC voltage

B)

Peak voltage/AC voltage

C)

(RMS voltage/DC voltage)*100

D)

None of the above

Correct Answer : (RMS voltage/DC voltage)*100

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